I never minded Christopher all that much when he was a minor character, but this season he's been getting on my nerves. Since the wedding he's become downright creepy. He's very possessive, and his way of bringing up having children was a bit psycho: "Let's have a baby! Okay, lie still!" What's going on with him?
To me, the ideal conclusion, relationship-wise, would be for Lorelai to divorce Christopher and go back to Luke (or anyone else, for that matter) and Rory to drop His Smarminess and take up with Jess again. Not that I expect it to happen.
While the L/C and R/L pairings aren't my favourites, I think the season wasn't spoiled by that so much as by the bland, clueless script-writing. I agree with ItyBty, earlier seasons had funny, sharp dialogue. Even the casual asides and background chatter was amusing. Now it all seems sort of lobotomized.
Incidentally, while I didn't care for Doula in a bucket, it was nice to see another home birth on the show.